Question #55c5c

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Question #55c5c

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Answer 1 · 2017-07-19T03:03:12

$x > \frac{π}{4}$ $x > pi/4$

Explanation:

$sin x > cos x = sin (\frac{π}{2} - x)$ $sin x > cos x = sin (pi/2 - x)$
$sin x > sin (\frac{π}{2} - x)$ $sin x > sin (pi/2 - x)$
$x > \frac{π}{2} - x$ $x > pi/2 - x$
$2 x > \frac{π}{2}$ $2x > pi/2$
$x > \frac{π}{4}$ $x > pi/4$

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Question #55c5c

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